Burned games once worked no longer works

Hello,

Games I have burned and used previously no longer works. All games with original DVD works fine, but many of the burned that once worked do not work any longer. This is not due to DVD-scratching etc because it has happened to a lot of the games, not just one or two. More specifically, the Wii freeze after you see the "This is how you hold your wiimote screen", so the disc loads and then just dies and you get the "UUUUUUUUUUUUUUUUUUUUUUUUUUUUU" sound and you can not access the wii menu or turn the wii off or anything, you have to pull the electricity to get it working again.

Spoiler

Could not detect the drive date!
Homebrew Channel 1.0.1 running on IOS36
Hollywood v0x11
Console ID: ****** <--- I was supposed to remove that right
Boot2 v3
Found 114 titles.
Found 29 IOS on this console. 2 of them are stub.